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Jobisdone [24]
3 years ago
12

Jose owns 22 books, mary owns 17 books, chen owns 24 books and fred owns one more than the average number of books owned by the

first three students. How many books does fred own?

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer: 21 books

Step-by-step explanation:

in the attachment

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1. The value(s) of x when sin(x) = -1 are x = -90° and 270°?
disa [49]

Answer:

1. True

2. True

3. y = -1

4. False

Step-by-step explanation:

1 -------------------------

sin(-90) = -1

sin(270) = -1

True

2 --------------------------

y = cos(-90)

y = 0

True

3 -------------------------

y = tan(-45)

y = -1

-1

4 ---------------------------

tan(90) cannot be calculated

False


3 0
4 years ago
13g = –(9 – 12g) – 5
Elena L [17]

Answer:

g = - 14

Step-by-step explanation:

13g = - (9 - 12g) - 5

13g = - 9 + 12g - 5

13g = 12g - 14

g = - 14

6 0
3 years ago
Find the missing side. Round to the nearest tenth.
iren2701 [21]

Answer:

3

Step-by-step explanation:

if you put six beside the unknown side then you will see that x =3

7 0
3 years ago
Using the following grading scale and the following scores calculate the student’s final grade in the class: Tests: 55% Quizzes:
Artyom0805 [142]

Answer:

87.471

Step-by-step explanation:

Given that scores for test, quiz, final exam , average quizzes.

There are weight given as 55% for quiz, 30% for homework, 5% Final Exam 10% Tests:

Now to calculate the student final grade, we can use weighted average method.

Final exam average


67

90

44

29

100

100

100


75.71428571

Use the averages to find:

Score Weight Score*weight

Quizzes 90 55% 49.5

Homework 85 30% 25.5

Tests 75.71 10% 7.571

final exam 98 5% 4.9

 

total   87.471

Hence answer is 87.471

7 0
3 years ago
Find the messsure of angle D.
Pepsi [2]

Answer:

the measure

angle (D) 20

8 0
2 years ago
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